Consider the Following Mechanism for the Oxidation of Bromide Ions

question 88

Multiple Choice

Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. H⁺ + H₂O₂ H₂O⁺-OH (rapid equilibrium)
H₂O⁺-OH + Br^-  HOBr + H₂O (slow)
HOBr + H⁺ + Br^-  Br₂ + H₂O (fast)
What is the overall reaction equation for this process?

• A) 2H₂O⁺-OH + 2Br^-  H₂O₂ + Br₂ + 2H₂O
• B) 2H⁺ + 2Br^- + H₂O₂  Br₂ + 2H₂O
• C) 2H⁺ + H₂O₂ + Br^- + HOBr  H₂O⁺-OH + Br₂ + H₂O
• D) H₂O⁺-OH + Br^- + H⁺  Br₂ + H₂O
• E) none of the above

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